[sr-dev] [tracker] Comment added: Extending TM timeout/408 handling

[sip-router]

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The following task has a new comment added:

FS#55 - Extending TM timeout/408 handling
User who did this - Iñaki Baz Castillo (ibc)

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It seems that new TM module includes some functions to detect if there was a timeout and also provisional responses for the winning branch, so they could be used to inspect the locatl timeout cause and determine what to do in each case:

  failure_route[0] { 
    if (t_branch_timeout()) {
      if (t_branch_replied())
        log("the winning branch got a fr_inv_timer expiration (provisional responses were received) => 408\n");
      else
        log("the winning branch got a fr_timer expiration (no response at all) => 500\n");
        # I prefer to reply a 500 in this case as it really means a problem with the destination:
        t_reply("500", "The destination is unreachable");
    }
  }
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More information can be found at the following URL:
http://sip-router.org/tracker/index.php?do=details&task_id=55#comment77

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